neti.c revision 3448:aaf16568054b 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28#include <sys/types.h>
29#include <sys/rwlock.h>
30#include <mdb/mdb_modapi.h>
31#include <sys/queue.h>
32#include <sys/neti.h>
33
34
35/*
36 * PROT_LENGTH is the max length. If the true length is bigger
37 * it is truncated.
38 */
39#define	PROT_LENGTH 32
40
41/*
42 * List pfhooks netinfo information.
43 */
44/*ARGSUSED*/
45int
46netinfolist(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
47{
48	struct neti_stack *nts;
49	struct netd_listhead nlh;
50	struct net_data nd, *p;
51	char str[PROT_LENGTH];
52
53	if (argc)
54		return (DCMD_USAGE);
55
56	if (mdb_vread((void *)&nts, sizeof (nts),
57	    (uintptr_t)(addr + OFFSETOF(netstack_t, netstack_neti))) == -1) {
58		mdb_warn("couldn't read netstack_neti");
59		return (DCMD_ERR);
60	}
61
62	if (mdb_vread((void *)&nlh, sizeof (nlh), (uintptr_t)((uintptr_t)nts +
63	    OFFSETOF(neti_stack_t, nts_netd_head))) == -1) {
64		mdb_warn("couldn't read netd list head");
65		return (DCMD_ERR);
66	}
67	mdb_printf("%<u>%?s %?s %10s%</u>\n",
68	    "ADDR(netinfo)", "ADDR(hookevent)", "netinfo");
69	p = LIST_FIRST(&nlh);
70	while (p) {
71		if (mdb_vread((void *)&nd, sizeof (nd), (uintptr_t)p) == -1) {
72			mdb_warn("couldn't read netinfo at %p", p);
73			return (DCMD_ERR);
74		}
75		if (!nd.netd_info.neti_protocol) {
76			mdb_warn("netinfo at %p has null protocol",
77			    nd.netd_info.neti_protocol);
78			return (DCMD_ERR);
79		}
80		if (mdb_readstr((char *)str, sizeof (str),
81		    (uintptr_t)nd.netd_info.neti_protocol) == -1) {
82			mdb_warn("couldn't read protocol at %p",
83			    nd.netd_info.neti_protocol);
84			return (DCMD_ERR);
85		}
86
87		mdb_printf("%0?p %0?p %10s\n",
88		    (char *)p + (uintptr_t)&((struct net_data *)0)->netd_info,
89		    nd.netd_hooks, str);
90
91		p = LIST_NEXT(&nd, netd_list);
92	}
93
94	return (DCMD_OK);
95}
96
97static const mdb_dcmd_t dcmds[] = {
98	{ "netinfolist", "", "display netinfo information",
99		netinfolist, NULL },
100	{ NULL }
101};
102
103static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds };
104
105const mdb_modinfo_t *
106_mdb_init(void)
107{
108	return (&modinfo);
109}
110